10-15 Superficial Face Flashcards
A: What are the 4 main muscles of Mastication (AKA____)
B: Which nerve innervates these muscles?
A: ºMastication (AKA Chewing)
- masseter m.
- temporalis m.
- lateral pterygoid m.
- medial pterygoid m.
B: MANDIBULAR n. ([Trigeminal/CN5-B3)
CN5 {_____ nerve} has 3 branches. Name the granddaughter branches of the FIRST 2 branches
CN5{TRIGEMINAL NERVE}
CN5-B1 = Nasociliary/ Frontal / Lacrimal n.
CN5-B2 =infraorbital / Zygomatic
Which nerve innervates Facial Expression Muscles? What are its branches?
Facial CN7 innervates Facial expression muscles! "That Zombie Bit My Cat" 1-Temporal n. 2-Zygomatic n. 3- Buccal n. 4-Mandibular n. 5-Cervical n.
[CN5B3= Mandibular n.] has 3 Divisions
Name the 4 nerves of the UnDivided Trunk Division
[CN5B3/mandibular n.]
- meningeal n.
- n. —>medial pterygoid
- n.—->tensor tympani m.
- n. —–>tensor veli palatini m.
[CN5B3= Mandibular n.] has 3 Divisions
Name the 4 nerves of the ANTERIOR/___ Division
ANTERIOR Division = Muscular MOTOR [except buccal]
- Buccal n.= Sensory but in MOTOR division
- BOTH Deep temporal n.
- lateral pterygoid n.
- Masseter n.
[CN5B3 = Mandibular n.] has 3 Divisions
Name the 3 nerves of the POSTERIOR/_____ Division
CN5B3/mandibular n.
POSTERIOR Division = sensory Division :-)
- auriculotemporal n.
- lingual n.
- inferior alveolar n. (creates mylohyoid n. 1st)—[but still continues as IA]—>mental n. when it exits
- *PAROTID GLAND**
1) Describe its nerve innervation
2) Where are its Preganglionic fibers located?
3) Where are its POSTganglionic cell bodies located?
4) Which nerve transmits this glands postganglionic fibers to it?
1) Parasympathetic from CN9
2) Preganglionic fibers in lesser petrosal n.
3) Postganglionic cell bodies in [otic ganglion]
4) Postganglionic fibers reach the gland via [Auriculotemporal n.]
- *SUBMANDIBULAR & SUBLINGUAL GLANDS**
1) Describe its nerve innervation
2) Where are its Preganglionic fibers located?
3) Where are its POSTganglionic cell bodies located?
1) parasympathetic innervation from [Facial CN7]
2) Preganglionic fibers in [chorda tympani n.] which travels with the CN5/lingual n.
3) Postganglionic cell bodies in [submandibular ganglion]
A: What part of the face does the Facial artery perfuse?
B: Name the 4 parts of the Facial Artery
A: ANT face including lips & nose
B: 1-inferior labial 2-superior labial 3-lateral nasal 4- angular artery = special
What’s special about the angular artery daughter of the ______ ______
angular artery <——–FACIAL ARTERY
**aa is the terminal branch tht anastomses w/infraorbital & ophthalmic arteries
1) The Maxillary artery has 3 parts. What are they, where are they located and how many branches each?
2) What fossa is the Maxillary artery found and perfuses?
1)
* Mandibular part [4 branches]=behind mandible neck
- Pterygoid part [4 branches] = found inside infratemporal fossa
- Pterygopalatine part [4 branches] = found inside pterygopalatine fossa & terminates in infraorbital region
2) Maxillary found in/perfuses infratemporal fossa
List the 4 arteries of the [Maxillary a. PTERYGOID part]
- pterygoid a.
- deep temporal a.
- masseteric a.
- buccal a.
A: List the 4 arteries of the [Maxillary a. PTERYGOPALATINE part]
B: Where is this part of the Maxillary a. located?
- POST SUP alveloar
- infraorbital a.
- descending palatine a.
- sphenopalatine a.
B: in the pterygopalatine fossa and terminates in infraorbital region
1) Why are some facial VEINS potential routes of infection?
2) What is an example of some of these veins?
1) many facial veins are continuous w/dural sinuses by valveless channels
2) emissary v. & [SUP ophthalmic v. ]
Describe the Lymphatic Flow within nodes [3]
starts at superficial regional nodes—>dEEP Cervical Nodes
———> THORACIC or RIGHT LYMPHATIC DUCT
